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riadik2000 [5.3K]
3 years ago
12

I Dont understand what to do

Mathematics
1 answer:
Sati [7]3 years ago
4 0
You need to find the area of this
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Please help 10 points
Margarita [4]

Answer:

The value of x is -2 and 2.

Step-by-step explanation:

When solve an expression, you have to make the expression equals to 0 by moving all the terms to one side :

x² - 3x - 1 = -3x + 3

x² - 3x - 1 + 3x - 3 = 0

x² - 4 = 0

Next, you have to factorize and solve it :

x² - 4 = 0

x² + 2x - 2x - 4 = 0

x(x + 2) - 2(x + 2) = 0

(x + 2)(x - 2) = 0

x + 2 = 0

x = -2

x - 2 = 0

x = 2

6 0
3 years ago
Which option is a better deal? 12 ounces of cereal for $2.99 or 17ounces of cereal for $3.52
masya89 [10]

Answer:

17 ounce cereal

Step-by-step explanation:

It is only a 53. cent difference so the better option would be the 17 ounce bag

8 0
3 years ago
During the last survey, 45% of the 700 employees voted in favor of the new company logo. How many employees voted in favor of th
VARVARA [1.3K]
45% of the total 700 employees voted in favor of the new company logo

Number of employees that voted in favor of the new logo
=(45/100) x 700
= 315 employees
7 0
3 years ago
Write the equation in standard form of a circle with center (-7,2), tangent to the y-axis.
Vesna [10]

Answer:

(x+7)^2+(y-2)^2=7^2

Step-by-step explanation:

Tangent to y-axis means that the side of the circle TOUCHES the y axis.

Since the center is at (-7,2) and it touches the y axis, we can figure out the radius. It goes from (-7,2) to y-axis. Horizontally, the center is 7 units left of y-axis, so that is the radius -----  7 units

The standard form of a circle is:

(x-h)^2+(y-k)^2=r^2

Where

(h,k) is the center

r is the radius

Putting the information into the form, we have:

(x-h)^2+(y-k)^2=r^2\\(x-(-7))^2+(y-(2))^2=7^2\\(x+7)^2+(y-2)^2=7^2

THis is the standard form.

7 0
3 years ago
Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 15 feet by 15 feet by 3 inches for a patio if
DerKrebs [107]

The answer is C. $95.83. To get the answer, you need to convert all units into yard first. Then, multiply all the given numbers having a result of 2.0827 cubic yards. Lastly, multiply the result to the concrete cost of $46. So the cost to pour a slab for a patio is $95.83.

8 0
3 years ago
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